is the comp c night vision compatible? and the comp ml2 says its is, but is it only for the with AN/PVS-14 and ITT night vision scopes? or for all night vision?

i think it's the comp M2 which is night vision compatible, not the comp ML2.

i've been researching it myself.

sorry I cant answer your other questions, haven't figure those out yet.

E (Qiii)

The Comp M2 is NVD compatible with 4 night vision brightness settings and 6 daylight setting.

The Comp ML2 is not NVD compatible (at least Aimpoint does not promote that it is) and has 1 off position and 9 daylight settings (I found it to have about 7 as 1 and 2 seemed better suited for night without a NVD)

I believe the Comp M series is the heavy duty Military version and the Comp C series the function equivalent to the Comp ML2 but built to Civilian ruggedness standards.  Get the full story at:

www.aimpoint.com